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<span class="lineno" id="2">     2  </span> * com.sekati.utils.AlignUtils
<span class="lineno" id="3">     3  </span> * @version 1.0.6
<span class="lineno" id="4">     4  </span> * @author jason m horwitz | sekati.com
<span class="lineno" id="5">     5  </span> * Copyright (C) 2007  jason m horwitz, Sekat LLC. All Rights Reserved.
<span class="lineno" id="6">     6  </span> * Released under the MIT License: http://www.opensource.org/licenses/mit-license.php
<span class="lineno" id="7">     7  </span> */</span>
<span class="lineno" id="8">     8  </span> 
<span class="lineno" id="9">     9  </span><span class="key">import</span> com.sekati.display.StageDisplay;
<span class="lineno" id="10">    10  </span>
<span class="lineno" id="11">    11  </span><span class="comment doc">/**
<span class="lineno" id="12">    12  </span> * Static class wrapping various Alignment and Scale utilities.
<span class="lineno" id="13">    13  </span> */</span>
<span class="lineno" id="14">    14  </span><span class="key">class</span> com.sekati.utils.AlignUtils {
<span class="lineno" id="15">    15  </span>
<span class="lineno" id="16">    16  </span>	<span class="comment doc">/**
<span class="lineno" id="17">    17  </span>	 * center align object to target
<span class="lineno" id="18">    18  </span>	 */</span>
<span class="lineno" id="19">    19  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> alignCenter(item:Object,target:Object):Void {
<span class="lineno" id="20">    20  </span>		xAlignCenter( item, target );
<span class="lineno" id="21">    21  </span>		yAlignCenter( item, target );
<span class="lineno" id="22">    22  </span>	}
<span class="lineno" id="23">    23  </span>
<span class="lineno" id="24">    24  </span>	<span class="comment doc">/**
<span class="lineno" id="25">    25  </span>	 * horizontal center align object to target
<span class="lineno" id="26">    26  </span>	 */</span>
<span class="lineno" id="27">    27  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> xAlignCenter(item:Object,target:Object):Void {
<span class="lineno" id="28">    28  </span>		item._x = int( target._width / <span class="num_const">2</span> - item._width / <span class="num_const">2</span> );
<span class="lineno" id="29">    29  </span>	}
<span class="lineno" id="30">    30  </span>
<span class="lineno" id="31">    31  </span>	<span class="comment doc">/**
<span class="lineno" id="32">    32  </span>	 * vertical  center  align object to target
<span class="lineno" id="33">    33  </span>	 */</span>
<span class="lineno" id="34">    34  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> yAlignCenter(item:Object,target:Object):Void {
<span class="lineno" id="35">    35  </span>		item._y = int( target._height / <span class="num_const">2</span> - item._height / <span class="num_const">2</span> );
<span class="lineno" id="36">    36  </span>	}
<span class="lineno" id="37">    37  </span>
<span class="lineno" id="38">    38  </span>	<span class="comment doc">/**
<span class="lineno" id="39">    39  </span>	 * right align object to target
<span class="lineno" id="40">    40  </span>	 */</span>
<span class="lineno" id="41">    41  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> alignRight(item:Object,target:Object):Void {
<span class="lineno" id="42">    42  </span>		xAlignRight( item, target );
<span class="lineno" id="43">    43  </span>		yAlignRight( item, target );
<span class="lineno" id="44">    44  </span>	}
<span class="lineno" id="45">    45  </span>
<span class="lineno" id="46">    46  </span>	<span class="comment doc">/**
<span class="lineno" id="47">    47  </span>	 * horizontal right align object to target
<span class="lineno" id="48">    48  </span>	 */</span>
<span class="lineno" id="49">    49  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> xAlignRight(item:Object,target:Object):Void {
<span class="lineno" id="50">    50  </span>		item._x = int( target._width - item._width );
<span class="lineno" id="51">    51  </span>	}
<span class="lineno" id="52">    52  </span>
<span class="lineno" id="53">    53  </span>	<span class="comment doc">/**
<span class="lineno" id="54">    54  </span>	 * vertical right align object to target
<span class="lineno" id="55">    55  </span>	 */</span>
<span class="lineno" id="56">    56  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> yAlignRight(item:Object,target:Object):Void {
<span class="lineno" id="57">    57  </span>		item._y = int( target._height - item._height );
<span class="lineno" id="58">    58  </span>	}
<span class="lineno" id="59">    59  </span>
<span class="lineno" id="60">    60  </span>	<span class="comment doc">/**
<span class="lineno" id="61">    61  </span>	 * left align object to target
<span class="lineno" id="62">    62  </span>	 */</span>
<span class="lineno" id="63">    63  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> alignLeft(item:Object,target:Object):Void {
<span class="lineno" id="64">    64  </span>		xAlignLeft( item, target );
<span class="lineno" id="65">    65  </span>		yAlignLeft( item, target );
<span class="lineno" id="66">    66  </span>	}
<span class="lineno" id="67">    67  </span>
<span class="lineno" id="68">    68  </span>	<span class="comment doc">/**
<span class="lineno" id="69">    69  </span>	 * horizontal left align object to target
<span class="lineno" id="70">    70  </span>	 */</span>	
<span class="lineno" id="71">    71  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> xAlignLeft(item:Object,target:Object):Void {
<span class="lineno" id="72">    72  </span>		item._x = int( target._x );
<span class="lineno" id="73">    73  </span>	}
<span class="lineno" id="74">    74  </span>
<span class="lineno" id="75">    75  </span>	<span class="comment doc">/**
<span class="lineno" id="76">    76  </span>	 * vertical left  align object to target
<span class="lineno" id="77">    77  </span>	 */</span>	
<span class="lineno" id="78">    78  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> yAlignLeft(item:Object,target:Object):Void {
<span class="lineno" id="79">    79  </span>		item._y = int( target._y );
<span class="lineno" id="80">    80  </span>	}
<span class="lineno" id="81">    81  </span>
<span class="lineno" id="82">    82  </span>	<span class="comment doc">/**
<span class="lineno" id="83">    83  </span>	 * center align object to Stage
<span class="lineno" id="84">    84  </span>	 */</span>
<span class="lineno" id="85">    85  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> stageAlignCenter(item:Object):Void {
<span class="lineno" id="86">    86  </span>		stageAlignXCenter( item );
<span class="lineno" id="87">    87  </span>		stageAlignYCenter( item );
<span class="lineno" id="88">    88  </span>	}
<span class="lineno" id="89">    89  </span>
<span class="lineno" id="90">    90  </span>	<span class="comment doc">/**
<span class="lineno" id="91">    91  </span>	 * horizontal center align object to Stage
<span class="lineno" id="92">    92  </span>	 */</span>
<span class="lineno" id="93">    93  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> stageAlignXCenter(item:Object):Void {
<span class="lineno" id="94">    94  </span>		item._x = int( StageDisplay.$._width / <span class="num_const">2</span> - item._width / <span class="num_const">2</span> );
<span class="lineno" id="95">    95  </span>	}
<span class="lineno" id="96">    96  </span>
<span class="lineno" id="97">    97  </span>	<span class="comment doc">/**
<span class="lineno" id="98">    98  </span>	 * vertical  center align object to Stage
<span class="lineno" id="99">    99  </span>	 */</span>
<span class="lineno" id="100">   100  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> stageAlignYCenter(item:Object):Void {
<span class="lineno" id="101">   101  </span>		item._y = int( StageDisplay.$._height / <span class="num_const">2</span> - item._height / <span class="num_const">2</span> );
<span class="lineno" id="102">   102  </span>	}
<span class="lineno" id="103">   103  </span>
<span class="lineno" id="104">   104  </span>	<span class="comment doc">/**
<span class="lineno" id="105">   105  </span>	 * Align object to Stage right
<span class="lineno" id="106">   106  </span>	 */</span>
<span class="lineno" id="107">   107  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> stageAlignRight(item:Object):Void {
<span class="lineno" id="108">   108  </span>		item._x = int( StageDisplay.$._width - item._width );
<span class="lineno" id="109">   109  </span>	}
<span class="lineno" id="110">   110  </span>
<span class="lineno" id="111">   111  </span>	<span class="comment doc">/**
<span class="lineno" id="112">   112  </span>	 * Align object to Stage bottom
<span class="lineno" id="113">   113  </span>	 */</span>
<span class="lineno" id="114">   114  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> stageAlignBottom(item:Object):Void {
<span class="lineno" id="115">   115  </span>		item._y = int( StageDisplay.$._height - item._height );
<span class="lineno" id="116">   116  </span>	}
<span class="lineno" id="117">   117  </span>
<span class="lineno" id="118">   118  </span>	<span class="comment doc">/**
<span class="lineno" id="119">   119  </span>	 * set scale wrapper
<span class="lineno" id="120">   120  </span>	 * @param item (Object) item to be scaled 
<span class="lineno" id="121">   121  </span>	 * @param scale (Number) scale percentage [0-100]
<span class="lineno" id="122">   122  </span>	 * @return Void
<span class="lineno" id="123">   123  </span>	 */</span>
<span class="lineno" id="124">   124  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> scale(item:Object,scale:Number):Void {
<span class="lineno" id="125">   125  </span>		item._xscale = scale,
<span class="lineno" id="126">   126  </span>		item._yscale = scale;
<span class="lineno" id="127">   127  </span>	}
<span class="lineno" id="128">   128  </span>
<span class="lineno" id="129">   129  </span>	<span class="comment doc">/**
<span class="lineno" id="130">   130  </span>	 * scale target item to fit within target confines
<span class="lineno" id="131">   131  </span>	 * @param item (Object) item to be aligned 
<span class="lineno" id="132">   132  </span>	 * @param targetW (Number) target item width
<span class="lineno" id="133">   133  </span>	 * @param targetH (Number) target item height
<span class="lineno" id="134">   134  </span>	 * @param center (Boolean) center object
<span class="lineno" id="135">   135  </span>	 * @return Void
<span class="lineno" id="136">   136  </span>	 */</span>
<span class="lineno" id="137">   137  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> scaleToFit(item:Object,targetW:Number,targetH:Number,center:Boolean):Void {
<span class="lineno" id="138">   138  </span>		<span class="key">if</span> (item._width &lt; targetW &amp;&amp; item._width &gt; item._height) {
<span class="lineno" id="139">   139  </span>			item._width = targetW;
<span class="lineno" id="140">   140  </span>			item._yscale = item._xscale;
<span class="lineno" id="141">   141  </span>		} <span class="key">else</span> {
<span class="lineno" id="142">   142  </span>			item._height = targetH;
<span class="lineno" id="143">   143  </span>			item._xscale = item._yscale;
<span class="lineno" id="144">   144  </span>		}
<span class="lineno" id="145">   145  </span>		<span class="key">if</span> (center) {
<span class="lineno" id="146">   146  </span>			item._x = int( targetW / <span class="num_const">2</span> - item._width / <span class="num_const">2</span> );
<span class="lineno" id="147">   147  </span>			item._y = int( targetH / <span class="num_const">2</span> - item._height / <span class="num_const">2</span> );
<span class="lineno" id="148">   148  </span>		}
<span class="lineno" id="149">   149  </span>	}
<span class="lineno" id="150">   150  </span>
<span class="lineno" id="151">   151  </span>	<span class="comment doc">/**
<span class="lineno" id="152">   152  </span>	 * scale while retaining original w:h ratio
<span class="lineno" id="153">   153  </span>	 * @param item (Object) item to be scaled
<span class="lineno" id="154">   154  </span>	 * @param targetW (Number) target item width
<span class="lineno" id="155">   155  </span>	 * @param targetH (Number) target item height
<span class="lineno" id="156">   156  </span>	 * @return Void
<span class="lineno" id="157">   157  </span>	 */</span>
<span class="lineno" id="158">   158  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> scaleRatio(item:Object,targetW:Number,targetH:Number):Void {
<span class="lineno" id="159">   159  </span>		<span class="key">if</span> (targetW / targetH &lt; item._height / item._width) {
<span class="lineno" id="160">   160  </span>			targetW = targetH * item._width / item._height;
<span class="lineno" id="161">   161  </span>		} <span class="key">else</span> {
<span class="lineno" id="162">   162  </span>			targetH = targetW * item._height / item._width;
<span class="lineno" id="163">   163  </span>		}
<span class="lineno" id="164">   164  </span>		item._width = targetW;
<span class="lineno" id="165">   165  </span>		item._height = targetH;
<span class="lineno" id="166">   166  </span>	}
<span class="lineno" id="167">   167  </span>
<span class="lineno" id="168">   168  </span>	<span class="comment doc">/**
<span class="lineno" id="169">   169  </span>	 * flip object on an axis
<span class="lineno" id="170">   170  </span>	 * @param obj (Object) item to flip
<span class="lineno" id="171">   171  </span>	 * @param axis (String) axis to flip on ["_x" or "_y"]
<span class="lineno" id="172">   172  </span>	 * @return Void
<span class="lineno" id="173">   173  </span>	 * @throws Error on invalid axis 
<span class="lineno" id="174">   174  </span>	 */</span>
<span class="lineno" id="175">   175  </span>	<span class="key">public</span> <span class="key">static</span>  <span class="key">function</span> flip(obj:Object,axis:String):Void {
<span class="lineno" id="176">   176  </span>		<span class="key">if</span> (axis != <span class="str_const">"_x"</span> &amp;&amp; axis != <span class="str_const">"_y"</span>) {
<span class="lineno" id="177">   177  </span>			<span class="key">throw</span> <span class="key">new</span> Error( <span class="str_const">"@@@ com.sekati.utils.AlignUtils.flip() Error: expects axis param: '_x' or '_y'."</span> );
<span class="lineno" id="178">   178  </span>			<span class="key">return</span>;
<span class="lineno" id="179">   179  </span>		}
<span class="lineno" id="180">   180  </span>		<span class="key">var</span> _scale:String = axis == <span class="str_const">"_x"</span> ? <span class="str_const">"_xscale"</span> : <span class="str_const">"_yscale"</span>;
<span class="lineno" id="181">   181  </span>		<span class="key">var</span> _prop:String = axis == <span class="str_const">"_x"</span> ? <span class="str_const">"_width"</span> : <span class="str_const">"_height"</span>;
<span class="lineno" id="182">   182  </span>		obj[_scale] = -obj[_scale];
<span class="lineno" id="183">   183  </span>		obj[axis] -= obj[_prop];
<span class="lineno" id="184">   184  </span>	}
<span class="lineno" id="185">   185  </span>
<span class="lineno" id="186">   186  </span>	<span class="key">private</span> <span class="key">function</span> AlignUtils() {
<span class="lineno" id="187">   187  </span>	}
<span class="lineno" id="188">   188  </span>}</pre><ul class="main_nav" id="main_nav"><li><a href="../../../overview-summary.html" title="Overview of SASAPI" class="button">Overview</a></li><li><a href="package-summary.html" title="Overview of package com.sekati.utils" class="button">Package</a></li><li><a href="AlignUtils.html" title="Detail of com.sekati.utils.AlignUtils API" class="button">Class</a></li><li><span class="button nav_current">Source</span></li><li><a href="../../../index-files/index.html" title="Alpabetical index of types and members" class="button">Index</a></li></ul><div class="footer"><a href="http://www.badgers-in-foil.co.uk/projects/as2api/" title="ActionScript 2 API Documentation Generator">as2api</a></div></body></html>